G1625 Global Mixed-mode Technology 7-bit Programmable VCOM Reference with Integrated Nonvolatile Memory Features General Description Integrated Nonvolatile Memory to Store VCOM The G1625 provides a programmable reference voltage for TFT-LCD panel VCOM adjustment. A 7-bit digital-to-analog converter (DAC) detects current from an external resistor-divider to create the VCOM reference voltage. This voltage is used as the input to a high current drive voltage buffer. Setting 100 Programming Times I 2C Interface 7-Bit, Adjustable Sink-Current Device Resistor-Adjustable, Full-Scale Range 2.5V to 3.6V Logic Supply Range 7V to 18V Analog Supply Range Protections: Over Current Protection (OCP) Over Temperature Protection (OTP) TDFN3X3-8 Package RoHS Compliant G1625 includes one time programmable (OTP) memory to store the DAC code on the chip, eliminating the need for external EEPROM. The chip supports up to 100 write operations to OTP memory. G1625 has an I2C interface to set the VCOM reference voltage and write into OTP memory. Applications TFT-LCD Panels Ordering Information ORDER NUMBER MARKING TEMP. RANGE PACKAGE (Green) G1625RD1U DS961 -40°C to +85°C TDFN 3X3-8 Note: RD: TDFN3X3-8 1: Bonding Code U: Tape & Reel Pin Configuration G1625 OUT 1 AVDD 2 VCOM 3 GND 4 Thermal Pad 8 SET 7 SCL 6 SDA 5 DVDD TDFN3X3-8 TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.2 Mar 25, 2013 1